In psychology, psychotherapy and management theory, abundance theory postulates a benign universe in which any individual with the correct attitude, training, or spiritual alignment can acquire personal abundance which should lead to material abundance: wealth regardless of economic or social circumstances (reality).

This attractive concept goes back at least as far as mesmerism, and has become embedded in several modern psychotherapeutic and religious movements. It counters fatalism by propounding the idea that people can change their fate.